Abstract: [Object] To provide an information processing apparatus, an information processing system, a program, and an information processing method that are capable of executing decoding without necessity of a large memory resource. [Solving Means] An information processing apparatus according to the present technology includes a decoder. The decoder acquires a top position of each piece of data of a plurality of channels included in each frame of compressed audio data and decodes the data of the plurality of channels for each block with a predetermined size from the top position.

Abstract: Provided is a data processing device that includes a sound extracting unit that extracts one or more sound blocks to be reproduced together with video data based on the plurality of images, on the basis of a predetermined characteristic quantity from sound data corresponding to sound captured within a period in which a plurality of intermittent images has been captured.

Abstract: The present technology relates to a data processing device, a data processing method, a program, and a data processing system which enable recording of meaningful sound for intermittent images. A data processing device includes a sound extracting unit that extracts one or more sound blocks to be reproduced together with video data based on the plurality of images, on the basis of a predetermined characteristic quantity from sound data corresponding to sound captured within a period in which a plurality of intermittent images has been captured. The present technology is applicable to, for example, a recording device that performs interval imaging.

Abstract: Reduction in reproduction quality is suppressed in an imaging device that images a sound and a moving image. A frame rate converter converts a frame rate of a frame captured outside a predetermined period among a plurality of frames captured at a predetermined frame rate to a low frame rate lower than the predetermined frame rate. A duplication unit duplicates an original sound signal recorded over the predetermined period to generate a plurality of duplicated sound signals each of which is identical to the original sound signal. The audio signal processing unit performs different signal processing on each of the plurality of duplicated sound signals.

Abstract: Deterioration in audio quality is inhibited in a device which records audio and stretches a reproduction time period. A sampling processing unit performs processing of sampling audio in a predetermined period at a sampling rate higher than a predetermined sampling rate to generate audio data as high-resolution audio data, and processing of sampling audio outside the predetermined period at the predetermined sampling rate to generate audio data as normal audio data. Also, a reproduction time conversion unit stretches the reproduction time period of the high-resolution audio data.

Abstract: Deterioration in audio quality is inhibited in a device which records audio and stretches a reproduction time period. A sampling processing unit performs processing of sampling audio in a predetermined period at a sampling rate higher than a predetermined sampling rate to generate audio data as high-resolution audio data, and processing of sampling audio outside the predetermined period at the predetermined sampling rate to generate audio data as normal audio data. Also, a reproduction time conversion unit stretches the reproduction time period of the high-resolution audio data.

Abstract: Reduction in reproduction quality is suppressed in an imaging device that images a sound and a moving image. A frame rate converter converts a frame rate of a frame captured outside a predetermined period among a plurality of frames captured at a predetermined frame rate to a low frame rate lower than the predetermined frame rate. A duplication unit duplicates an original sound signal recorded over the predetermined period to generate a plurality of duplicated sound signals each of which is identical to the original sound signal. The audio signal processing unit performs different signal processing on each of the plurality of duplicated sound signals.